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Product Manual

ManualsBrandsKlutch ManualsArc + Stick WeldersReconditioned ST80i Plus DC Arc Welder with TIG function — Inverter, 120 Volt, 20–75 Amp Output
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A solid weld bead requires that the electrode be moved slowly and steadily along the
weld seam. Moving the electrode rapidly or erratically will prevent proper fusion or
create a lumpy, uneven bead.
⚠WARNING
ELECTRIC SHOCK CAN KILL!
To prevent ELECTRIC SHOCK, do not perform any welding while standing, kneeling, or lying
directly on the grounded workpiece.
f. Finish the bead
As the coating on the outside of the electrode burns off, it forms an envelope of
protective gases around the weld. This prevents air from reaching the molten metal
and creating an undesirable chemical reaction. The burning coating, however, forms
slag. The slag formation appears as an accumulation of dirty metal scale on the
finished weld. Slag should be removed by using a chipping hammer.
⚠WARNING
PEENING THE SLAG FROM A WELD JOINT CUASES SMALL CHIPS OF METAL TO FLY
THROUGH THE AIR!
Metallic chips flying through the air can cause eye injury or injury to other parts of the head,
hands, or exposed portions of the body. Wear goggles or safety glasses with side shields and
protect the hands and other exposed parts of the body with protective garments, or if possible,
work with a shield between the body and the work piece.
The intense heat produced at the arc sets up strains in the metal joined by welding.
Peening the weld not only removes the scale left behind in the welding but relieves
the internal strains developed by the heating and cooling process.
DC TIG OPERATION
⚠WARNING
High voltage danger from power source!
Consult a qualified electrician for proper installation of receptacle at the power source. This
welder must be grounded while in use to protect the operator from electrical shock. If you are
not sure if your outlet is properly grounded, have it checked by a qualified electrician. Do not
cut off the grounding prong or alter the plug in any way and do not use any adapter, other than
the supplied adapter, between the welder's power cord and the power source receptacle.
Make sure the POWER switch is OFF then connect your welder's power cord to a properly
grounded 120 VAC (110V-130V), 60 Hz, single phase, 20 amp power source.
⚠WARNING
EXPOSURE TO A WELDING ARC IS EXTREMELY HARMFUL TO THE EYES AND SKIN!
Prolonged exposure to the welding arc can cause blindness and burns. Never strike an arc or
begin welding until you are adequately protected. Wear flame-proof welding gloves, a heavy
long sleeved shirt, trousers without cuffs, high topped shoes, and an ANSI approved welding
helmet.